The API service classes have two general classifications : " S " for " service / spark ignition " ( typical passenger cars and light trucks using gasoline engines ), and " C " for " commercial / compression ignition " ( typical diesel equipment ).
42.
Gasoline engines combine homogeneous charge ( HC ) with spark ignition ( SI ), abbreviated as HCSI . Diesel engines combine stratified charge ( SC ) with compression ignition ( CI ), abbreviated as SCCI . HCCI engines achieve gasoline engine-like emissions with compression ignition engine-like efficiency.
43.
Gasoline engines combine homogeneous charge ( HC ) with spark ignition ( SI ), abbreviated as HCSI . Diesel engines combine stratified charge ( SC ) with compression ignition ( CI ), abbreviated as SCCI . HCCI engines achieve gasoline engine-like emissions with compression ignition engine-like efficiency.
44.
Another strategy attractive to both gas and diesel engineers is called homogeneous charge compression ignition, or HCCI . The idea is to create a mixture of fuel and air that makes it possible for combustion to occur spontaneously at several places in the cylinder instead of at a single location.
45.
Hi, I have just seen War of the Worlds and note that all the cars ( and everything else ) was stopped by the EMP . But I've also been told by an ex-mechanic that a deisel engine would not be affected in the same way as it works on compression ignition.
46.
Because diesel engines are compression ignition engines, and lack spark plugs, to operate a diesel engine with an alternate combustible fuel source such as Natural gas as the main fuel diesel oil is used for the ignition of the gas / air mixture inside the cylinder ( a portion of diesel oil is injected at the end of the compression stroke, thereby maintaining the original diesel operation principle ).
